/*
 * jQuery UI Effects Clip 1.6
 *
 * Copyright (c) 2008 AUTHORS.txt (http://ui.jquery.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Effects/Clip
 *
 * Depends:
 *	effects.core.js
 */
(function($) {

    $.effects.clip = function(o) {

        return this.queue(function() {

            // Create element
            var el = $(this), props = ['position', 'top', 'left', 'height', 'width'];

            // Set options
            var mode = $.effects.setMode(el, o.options.mode || 'hide'); // Set Mode
            var direction = o.options.direction || 'vertical'; // Default direction

            // Adjust
            $.effects.save(el, props);
            el.show(); // Save & Show
            var wrapper = $.effects.createWrapper(el).css({overflow: 'hidden'}); // Create Wrapper
            var animate = el[0].tagName == 'IMG' ? wrapper : el;
            var ref = {
                size: (direction == 'vertical') ? 'height' : 'width',
                position: (direction == 'vertical') ? 'top' : 'left'
            };
            var distance = (direction == 'vertical') ? animate.height() : animate.width();
            if (mode == 'show') {
                animate.css(ref.size, 0);
                animate.css(ref.position, distance / 2);
            } // Shift

            // Animation
            var animation = {};
            animation[ref.size] = mode == 'show' ? distance : 0;
            animation[ref.position] = mode == 'show' ? 0 : distance / 2;

            // Animate
            animate.animate(animation, {queue: false, duration: o.duration, easing: o.options.easing, complete: function() {
                    if (mode == 'hide')
                        el.hide(); // Hide
                    $.effects.restore(el, props);
                    $.effects.removeWrapper(el); // Restore
                    if (o.callback)
                        o.callback.apply(el[0], arguments); // Callback
                    el.dequeue();
                }});

        });

    };

})(jQuery);
